- Nov 11, 2019
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Proto-Earth was on a fast track to planet formation.
'Starter' Earth grew in a flash. Here's how the planet did it. : Read more
'Starter' Earth grew in a flash. Here's how the planet did it. : Read more
This seems fairly likely, see how they can robustly predict the isotope differences between Earth versus Mars and Vesta [figure 2 in the paper] that formed further out and follows the Fe/Ca mixing line while Earth do not. It would be very hard to explain unless early core formation and late mantle contribution from pebbles in the Earth case. Formation within 5 Myrs would also explain why the inner planets have orbits in a plane while Mars from similar isotope results likely formed later and it, as well as the asteroid belt debris material, got stunted by the outer planets migration at 10 Myrs or so just as the protoplanetary disk dissipated/was dissipated [ https://advances.sciencemag.org/content/advances/6/7/eaay2338.full.pdf , https://www.sciencemag.org/news/2020/01/cataclysmic-bashing-giant-planets-occurred-early-our-solar-systems-history ]. That the protoEarth Tellus was hit by a Mars sized Theia planetesimal at 50 Myrs could have been a late result of that outer system upheaval, models of a glancing impact that would create Moon show that Theia material could have gone to the core.Proto-Earth was on a fast track to planet formation.
'Starter' Earth grew in a flash. Here's how the planet did it. : Read more
The bible tells you the earth was formed in a moment of time, where he spoke and the earth was created.Proto-Earth was on a fast track to planet formation.
'Starter' Earth grew in a flash. Here's how the planet did it. : Read more
It's difficult to discern intent from a comment, so in case your comment lacked the /sarcasm tag on purpose:The bible tells you the earth was formed in a moment of time, where he spoke and the earth was created.
Science is slowly catching up !
Read some more of the good book and you may learn something !